are defending our freedom every single day. >> mitt romney has his own message. his message, we can win. he's delivering it at a state that could be the key stone to either side's victory. jim acosta is on the campaign trail with the romney team. >> deb and victor, even though mitt romney has made much of his campaign about fixing the economy, he has been stepping up his attacks on the president of national security and specifically who is a better friend of israel and there are signs the obama campaign is paying attention. at a military academy in pennsylvania, mitt romney tried to make the case for a new commander in chief. romney, once again, questioned the president's recent description of events in the middle east as bumps in the road. >> i sure as heck don't consider iran becoming a nuclear bump in the road. weeed someone who recognizes the seriousness of what is ahead and is willing to leave. >> reporter: romney's tough talk on iran follows benjamin netanyahu dramatic performance at the united nations drawing attention to his nuclear worries. >> a red line should be drawn right here.